<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<script>
			function aa(){
				//alert(arguments[0]); 闭包
				var s = arguments[0];
				return function bb(){
					alert(s);
				}
			}
			var kk = aa(123,456);
			kk();
			//bb();
		</script>
	</head>
	<body>
	</body>
</html>
